John Kay, noted British economist, says in his current a column about Belief, Santa Claus, Saddam Hussein, Polar Express, deficits, internet business plans, Peter Pan, and global warming,
Economists define adulthood as the moment at which your expenditure on Christmas presents first exceeds the value of the gifts you can expect to receive.
Alternatively, Steinbeck in his one light comedy defined adulthood as when the feet accepted their rightful place as being below the head. (Anyone with teenagers will understand that one.)
